U.S. Rep. Martha McSally, R-Ariz., leaves in a T-6 World War II airplane after speaking at a Jan. 12, 2018, rally in Phoenix. Matt York/Associated Press

Sinema vs. McSally

U.S. Rep. Martha McSally, R-Ariz., leaves in a T-6 World War II airplane after speaking at a Jan. 12, 2018, rally in Phoenix.
Matt York/Associated Press

Rep. Kyrsten Sinema, D-Dist. 9, turns in signatures to Eric Spencer, director of election services for the Office of the Secretary of State, in Phoenix, Tuesday, May 29, 2018. Sinema is running for U.S. Senate. Tom Tingle/The Republic

Sinema vs. McSally

Rep. Kyrsten Sinema, D-Dist. 9, turns in signatures to Eric Spencer, director of election services for the Office of the Secretary of State, in Phoenix, Tuesday, May 29, 2018. Sinema is running for U.S. Senate.
Tom Tingle/The Republic

U.S. Rep. Martha McSally, with her supporters, files her signatures to appear on the ballot for U.S. Senate at the Arizona Secretary of State's Office on May 29, 2018. Nick Oza/The Arizona Republic

Sinema vs. McSally

U.S. Rep. Martha McSally, with her supporters, files her signatures to appear on the ballot for U.S. Senate at the Arizona Secretary of State's Office on May 29, 2018.
Nick Oza/The Arizona Republic

Kyrsten Sinema thanks volunteers at her field office in Phoenix, Ariz. August 28. 2018. Sinema is vying for the Democratic nomination for the open U.S. Senate seat. Michael Chow/The Republic

Sinema vs. McSally

Kyrsten Sinema thanks volunteers at her field office in Phoenix, Ariz. August 28. 2018. Sinema is vying for the Democratic nomination for the open U.S. Senate seat.
Michael Chow/The Republic

Sinema vs. McSally

Rep. Martha McSally, a republican vying for her party's U.S. Senate nomination, speaks during campaign pitch to the Palo Verde Republican Woman at Lush Burger in Scottsdale on May 20, 2018. Cheryl Evans/The Republic

Sinema vs. McSally

Rep. Martha McSally, a republican vying for her party's U.S. Senate nomination, speaks during campaign pitch to the Palo Verde Republican Woman at Lush Burger in Scottsdale on May 20, 2018.
Cheryl Evans/The Republic

Representative Martha McSally in center welcomes Department of Homeland Security Secretary Kirstjen Nielsen, at round table meeting with members of the Arizona border community in Nogales, Arizona on May 31st, 2018. Nick Oza/The Republic

Sinema vs. McSally

Representative Martha McSally in center welcomes Department of Homeland Security Secretary Kirstjen Nielsen, at round table meeting with members of the Arizona border community in Nogales, Arizona on May 31st, 2018.
Nick Oza/The Republic

Sinema vs. McSally

U.S. Rep. Martha McSally with her supporters file her signatures to appear on the ballot for U.S. Senate at Arizona Secretary of State's Office on Tuesday May 29, 2018. Nick Oza/The Arizona Republic

Sinema vs. McSally

U.S. Rep. Martha McSally with her supporters file her signatures to appear on the ballot for U.S. Senate at Arizona Secretary of State's Office on Tuesday May 29, 2018.
Nick Oza/The Arizona Republic

Kyrsten Sinema works on a Habitat for Humanity Neighborhood Revitalization Program project Nov. 21, 2017, in Tempe. Mark Henle/The Republic

Sinema vs. McSally

Kyrsten Sinema works on a Habitat for Humanity Neighborhood Revitalization Program project Nov. 21, 2017, in Tempe.
Mark Henle/The Republic

U.S. Rep. Martha McSally with her supporters file her signatures to appear on the ballot for U.S. Senate at Arizona Secretary of State's Office on Tuesday May 29, 2018. Nick Oza/The Arizona Republic

Sinema vs. McSally

U.S. Rep. Martha McSally with her supporters file her signatures to appear on the ballot for U.S. Senate at Arizona Secretary of State's Office on Tuesday May 29, 2018.
Nick Oza/The Arizona Republic

Kyrsten Sinema thanks volunteers at her field office in Phoenix, Ariz. August 28. 2018. Sinema is vying for the Democratic nomination for the open U.S. Senate seat. Michael Chow/The Republic

Sinema vs. McSally

Kyrsten Sinema thanks volunteers at her field office in Phoenix, Ariz. August 28. 2018. Sinema is vying for the Democratic nomination for the open U.S. Senate seat.
Michael Chow/The Republic

Rep. Martha McSally greets supporters Aug. 28. 2018, during a primary election party In Tempe, Ariz. . McSally, the two-term congresswoman from Tucson, is vying for the Republican nomination for the open U.S. Senate seat. Michael Chow/The Republic

Sinema vs. McSally

Rep. Martha McSally greets supporters Aug. 28. 2018, during a primary election party In Tempe, Ariz. . McSally, the two-term congresswoman from Tucson, is vying for the Republican nomination for the open U.S. Senate seat.
Michael Chow/The Republic

U.S. Rep. Kyrsten Sinema, who is running for U.S. Senate as a Democrat, tours Blockwise Engineering LLC in Tempe on July 2, 2018. David Wallace/The Republic

Sinema vs. McSally

U.S. Rep. Kyrsten Sinema, who is running for U.S. Senate as a Democrat, tours Blockwise Engineering LLC in Tempe on July 2, 2018.
David Wallace/The Republic

U.S. Rep. Martha McSally, R-Ariz., sings the national anthem at the Utah vs. ASU game on Nov. 3 at Sun Devil Stadium. McSally is running against Democrat Krysten Sinema for the U.S. Senate. Rob Schumacher/The Republic

Sinema vs. McSally

U.S. Rep. Martha McSally, R-Ariz., sings the national anthem at the Utah vs. ASU game on Nov. 3 at Sun Devil Stadium. McSally is running against Democrat Krysten Sinema for the U.S. Senate.
Rob Schumacher/The Republic

Rep. Kyrsten Sinema, D-Ariz., the Democratic candidate for the U.S. Senate in the huddle for the coin toss as Utah plays Arizona State. Sinema is running against Republication Martha McSally for the U.S. Senate. Rob Schumacher/The Republic

Sinema vs. McSally

Rep. Kyrsten Sinema, D-Ariz., the Democratic candidate for the U.S. Senate in the huddle for the coin toss as Utah plays Arizona State. Sinema is running against Republication Martha McSally for the U.S. Senate.
Rob Schumacher/The Republic

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As the remaining ballots come in, the numbers and margins will shift. The map will continue to be updated as precinct-level results are available.

Scroll over to see the margin in each precinct.

Across Maricopa, 407 precincts show Sinema in the lead, while 331 have more votes for McSally.

And 204 precincts currently have less than a 10 percent margin for either candidate.

Based on Thursday night's data, Sinema leads by at least 40 percentage points across 110 contiguous precincts — in the central Valley, stretching from Tolleson in the west, to Glendale and Peoria, and as far east as Mesa and Chandler.

McSally leads by at least 20 percentage points in 111 precincts.

Sinema, meanwhile, has a 20 percentage point lead in 228 precincts.

CLOSE

Republican Martha McSally and her rival, Democrat Sinema, debate health care on Oct. 15, 2018, during a debate for U.S. Senate.
Arizona Republic

The highest margin for Sinema is 82.1 percentage points in the Guadalupe Precinct, south of Baseline Road and east of Interstate 17, where she currently has 89.5 percent of the vote.

McSally’s largest margin is in rural far-west Maricopa County's Salome precinct, where she had 74.7 percent of the vote and leads by 53.2 percentage points over Sinema.